123261520

素因数分解:

$2^4\times 5^1\times {\mathrm{947}}^1\times {\mathrm{1627}}^1$

素因数の和:2587

約数の個数: 40

約数和(自身を含む): 287061984

約数和(自身を除く): 163800464

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 947, 1627, 1894, 3254, 3788, 4735, 6508, 7576, 8135, 9470, 13016, 15152, 16270, 18940, 26032, 32540, 37880, 65080, 75760, 130160, 1540769, 3081538, 6163076, 7703845, 12326152, 15407690, 24652304, 30815380, 61630760, 123261520]

約数ペア:

[(1, 123261520), (2, 61630760), (4, 30815380), (5, 24652304), (8, 15407690), (10, 12326152), (16, 7703845), (20, 6163076), (40, 3081538), (80, 1540769), (947, 130160), (1627, 75760), (1894, 65080), (3254, 37880), (3788, 32540), (4735, 26032), (6508, 18940), (7576, 16270), (8135, 15152), (9470, 13016)]